Patek Philippe
Grand Complications 5213G-010— lug 20mm

The Patek Philippe Grand Complications 5213G-010 features a lug width of 20mm. This measurement is standard for this particular reference and determines compatibility with all aftermarket straps. To verify correct measurement, use a digital calliper positioned between the two lugs on the case: the distance must be precisely 20mm.

For this haute complication timepiece, we recommend natural alligator leather in black or cognac, which reflects the formal elegance of the white gold case. Alternatively, vegetable-tanned calf leather in Tuscan brown offers a patina that evolves with time, creating a narrative connection to the perpetual nature of the watch. Shell cordovan, though rare in 20mm format, guarantees structural robustness and an aesthetic plasticity without equal.

Changing the strap requires either a quick-release spring bar tool or a hardened steel spring bar tool. Position the watch on a soft surface, insert the tool into the lateral slot of the lower lug and lift slightly; the original strap will detach. Replace with the new strap by aligning its holes with the lug pins, then press until the spring mechanism clicks. We recommend having a certified watchmaker perform this operation to avoid damage to the gold case.

Yes. Any strap manufactured with a 20mm lug width is compatible with the 5213G-010, provided it respects quality standards and finishing integrity. We recommend straps in alligator, shell cordovan or vegetable-tanned calf, fitted with a deployante or gold-toned loop to maintain aesthetic coherence with the case. On milanostraps.it you will find a curated selection of artisanal 20mm straps, customisable through a consultation at the Casati Milano atelier.

A high-quality natural leather strap has an average lifespan of 3-5 years of daily wear, but this depends on tanning type and maintenance practices. Alligator, owing to its fibre density, tends toward the upper end of this range. Vegetable-tanned calf develops aesthetically over time, acquiring patina and natural saturation. To extend longevity, avoid prolonged humidity exposure, prevent direct sweat contact with the leather, and have a specialist watchmaker periodically inspect stitching and buckle integrity. Casati Milano provides an 18-month guarantee against manufacturing defects.